Avast

Avast Free Antivirus 2015

Avast Free Antivirus 2015 has added utilities to an already comprehensive set of security tools. The new Smart Scan detects vulnerabilities in your home network, checks for program updates, and fixes PC performance issues with just one click. Avast continues to improve its anti-malware protection, as well as making it easier to manage security for multiple devices via the Web client.